Enhancing compressive properties and sound absorption characteristic of open-cell Mg foams through plasma electrolytic oxidation treatment

J.A. Liu; W.B. Sun; Z.B. Zheng; X. Xiao; C.J. Che; L.R. Cheng; X.Y. Zhu; X.J. Liu

Journal of Materials Research and Technology (Jul 2023)

Enhancing compressive properties and sound absorption characteristic of open-cell Mg foams through plasma electrolytic oxidation treatment

J.A. Liu,
W.B. Sun,
Z.B. Zheng,
X. Xiao,
C.J. Che,
L.R. Cheng,
X.Y. Zhu,
X.J. Liu

Affiliations

J.A. Liu: Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun, 130022, PR China
W.B. Sun: Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun, 130022, PR China
Z.B. Zheng: Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun, 130022, PR China
X. Xiao: School of Mechanical and Aerospace Engineering, Jilin University, Changchun, 130022, China
C.J. Che: State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
L.R. Cheng: State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
X.Y. Zhu: School of Mechanical and Aerospace Engineering, Jilin University, Changchun, 130022, China; Corresponding author.
X.J. Liu: Key Laboratory of Automobile Materials (Ministry of Education), College of Materials Science and Engineering, Jilin University, Changchun, 130022, PR China

Journal volume & issue: Vol. 25
pp. 1263 – 1272

Abstract

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Plasma electrolytic oxidation (PEO) technology was used to deposit a ceramic coating on the strut of open-cell Mg foams. In this experiment, the microstructure, the phase composition, and the elemental distribution of the PEO-coated Mg foams were investigated. Effect of the PEO treatment on the compressive properties and the sound absorption characteristic of open-cell Mg foams were studied. The experimental results indicate that PEO coating is mainly composed of a mixture of MgO and MgAl2O4 ceramics with high hardness and high brittleness. The compressive strength and the energy absorption capacity of Mg foams improved after being subjected to PEO treatment; however, the brittleness of the PEO-coated foams was more noticeable than that of the uncoated foams. The sound absorption coefficient of the PEO-coated Mg foams is slightly greater than that of the uncoated foams, which is mainly attributed to increased viscous friction induced by the micro-pores in the PEO coatings.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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